Evans said the woman, who was in her 90s, was taken to a Memorial Hermann Hospital, where she died about 3:15 a.m. Wednesday. Her name has not been released.

No other injuries were reported.

Evans said the woman's son returned from visiting a neighbor and saw smoke and flames coming the house he shares with his mother. He tried to get inside to save her, Evans said, but the smoke was too thick. At least two other neighbors also tried to help, but smoke and flames drove them back.

The victim was found on the floor of a bedroom.

Evans said investigators believe the fire started in the kitchen on the stove.

It is the second case of a Houston woman dying in a house fire in as many days.

About 11:40 p.m. Monday, 66-year-old Gladys Cotton died after firefighters found her in a bathtub as flames ripped through her home in the 6100 block of Sherwood near Porter. Cotton was taken to Memorial Hermann, where she was pronounced dead.

Investigators were trying to determine what sparked the blaze.

Firefighters said Cotton's home was packed with stacks of books, newspapers, videotapes, clothes and other items she collected and stored.